diff --git a/pkgs/applications/editors/bluefish/default.nix b/pkgs/applications/editors/bluefish/default.nix
index 1919e6b6947d..008ff8196d16 100644
--- a/pkgs/applications/editors/bluefish/default.nix
+++ b/pkgs/applications/editors/bluefish/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "A powerful editor targeted towards programmers and webdevelopers";
-    homepage = "http://bluefish.openoffice.nl/";
+    homepage = "https://bluefish.openoffice.nl/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ vbgl ];
     platforms = platforms.all;
diff --git a/pkgs/applications/editors/emacs/elisp-packages/prolog/default.nix b/pkgs/applications/editors/emacs/elisp-packages/prolog/default.nix
index 24df2b0d5dec..590906d6acdb 100644
--- a/pkgs/applications/editors/emacs/elisp-packages/prolog/default.nix
+++ b/pkgs/applications/editors/emacs/elisp-packages/prolog/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = "http://bruda.ca/emacs/prolog_mode_for_emacs/";
+    homepage = "https://bruda.ca/emacs/prolog_mode_for_emacs/";
     description = "Prolog mode for Emacs";
     license = lib.licenses.gpl2Plus;
   };
diff --git a/pkgs/applications/networking/cluster/spark/default.nix b/pkgs/applications/networking/cluster/spark/default.nix
index 3de0f9441138..7876eb1c7523 100644
--- a/pkgs/applications/networking/cluster/spark/default.nix
+++ b/pkgs/applications/networking/cluster/spark/default.nix
@@ -46,7 +46,7 @@ let
 
       meta = {
         description      = "Apache Spark is a fast and general engine for large-scale data processing";
-        homepage         = "https://spark.apache.org";
+        homepage         = "https://spark.apache.org/";
         license          = lib.licenses.asl20;
         platforms        = lib.platforms.all;
         maintainers      = with maintainers; [ thoughtpolice offline kamilchm illustris ];
diff --git a/pkgs/applications/science/logic/fast-downward/default.nix b/pkgs/applications/science/logic/fast-downward/default.nix
index bc825703ee3a..ece9367e30bd 100644
--- a/pkgs/applications/science/logic/fast-downward/default.nix
+++ b/pkgs/applications/science/logic/fast-downward/default.nix
@@ -52,7 +52,7 @@ stdenv.mkDerivation {
 
   meta = with lib; {
     description = "A domain-independent planning system";
-    homepage = "http://www.fast-downward.org/";
+    homepage = "https://www.fast-downward.org/";
     license = licenses.gpl3Plus;
     platforms = with platforms; (linux ++ darwin);
     maintainers = with maintainers; [ abbradar ];
diff --git a/pkgs/applications/science/misc/fityk/default.nix b/pkgs/applications/science/misc/fityk/default.nix
index 3198b40711d1..974fd3ece45c 100644
--- a/pkgs/applications/science/misc/fityk/default.nix
+++ b/pkgs/applications/science/misc/fityk/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
   meta = {
     description = "Curve fitting and peak fitting software";
     license = lib.licenses.gpl2;
-    homepage = "http://fityk.nieto.pl/";
+    homepage = "https://fityk.nieto.pl/";
     platforms = lib.platforms.linux;
   };
 }
diff --git a/pkgs/development/compilers/ocaml/ber-metaocaml.nix b/pkgs/development/compilers/ocaml/ber-metaocaml.nix
index 895706312c14..92fcb7c04c76 100644
--- a/pkgs/development/compilers/ocaml/ber-metaocaml.nix
+++ b/pkgs/development/compilers/ocaml/ber-metaocaml.nix
@@ -80,7 +80,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description     = "Multi-Stage Programming extension for OCaml";
-    homepage        = "http://okmij.org/ftp/ML/MetaOCaml.html";
+    homepage        = "https://okmij.org/ftp/ML/MetaOCaml.html";
     license         = with licenses; [ /* compiler */ qpl /* library */ lgpl2 ];
     maintainers     = with maintainers; [ thoughtpolice ];
 
diff --git a/pkgs/development/libraries/apache-activemq/default.nix b/pkgs/development/libraries/apache-activemq/default.nix
index 13305d312736..745b9b562e4c 100644
--- a/pkgs/development/libraries/apache-activemq/default.nix
+++ b/pkgs/development/libraries/apache-activemq/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = "http://activemq.apache.org/";
+    homepage = "https://activemq.apache.org/";
     description = "Messaging and Integration Patterns server written in Java";
     license = lib.licenses.asl20;
     platforms = lib.platforms.unix;
diff --git a/pkgs/development/libraries/apr/default.nix b/pkgs/development/libraries/apr/default.nix
index 0292fb223e7c..e2db4db80e29 100644
--- a/pkgs/development/libraries/apr/default.nix
+++ b/pkgs/development/libraries/apr/default.nix
@@ -62,7 +62,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with lib; {
-    homepage = "http://apr.apache.org/";
+    homepage = "https://apr.apache.org/";
     description = "The Apache Portable Runtime library";
     platforms = platforms.all;
     license = licenses.asl20;
diff --git a/pkgs/development/libraries/java/commons/math/default.nix b/pkgs/development/libraries/java/commons/math/default.nix
index 960f12fb8bfb..5543532015e0 100644
--- a/pkgs/development/libraries/java/commons/math/default.nix
+++ b/pkgs/development/libraries/java/commons/math/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage    = "http://commons.apache.org/proper/commons-math/";
+    homepage    = "https://commons.apache.org/proper/commons-math/";
     description = "A library of lightweight, self-contained mathematics and statistics components";
     maintainers = with lib.maintainers; [ copumpkin ];
     license     = lib.licenses.asl20;
diff --git a/pkgs/games/asc/default.nix b/pkgs/games/asc/default.nix
index af3f9f403100..4dc671f5c3c3 100644
--- a/pkgs/games/asc/default.nix
+++ b/pkgs/games/asc/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
       currently available for Windows and Linux.
     '';
 
-    homepage = "http://www.asc-hq.org/";
+    homepage = "https://www.asc-hq.org/";
 
     license = licenses.gpl2Plus;
 
diff --git a/pkgs/misc/cups/drivers/estudio/default.nix b/pkgs/misc/cups/drivers/estudio/default.nix
index 5dd4c8815059..1af8d1f575b8 100644
--- a/pkgs/misc/cups/drivers/estudio/default.nix
+++ b/pkgs/misc/cups/drivers/estudio/default.nix
@@ -43,7 +43,7 @@ stdenv.mkDerivation {
       TOSHIBA e-STUDIO6540C, TOSHIBA e-STUDIO6550C, TOSHIBA e-STUDIO6560C,
       TOSHIBA e-STUDIO6570C and TOSHIBA e-STUDIO7506AC.
     '';
-    homepage = "http://business.toshiba.com/support/downloads/index.html";
+    homepage = "https://business.toshiba.com/support/downloads/index.html";
     license = licenses.unfree;
     maintainers = [ maintainers.jpotier ];
   };
diff --git a/pkgs/servers/computing/storm/default.nix b/pkgs/servers/computing/storm/default.nix
index 514f01e3116e..146db2ea5de5 100644
--- a/pkgs/servers/computing/storm/default.nix
+++ b/pkgs/servers/computing/storm/default.nix
@@ -60,7 +60,7 @@ stdenv.mkDerivation rec {
   dontStrip = true;
 
   meta = with lib; {
-    homepage = "http://storm.apache.org";
+    homepage = "https://storm.apache.org/";
     description = "Distributed realtime computation system";
     license = licenses.asl20;
     maintainers = with maintainers; [ edwtjo vizanto ];
diff --git a/pkgs/servers/http/couchdb/3.nix b/pkgs/servers/http/couchdb/3.nix
index 4a7144a8e185..076edfb8453a 100644
--- a/pkgs/servers/http/couchdb/3.nix
+++ b/pkgs/servers/http/couchdb/3.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "A database that uses JSON for documents, JavaScript for MapReduce queries, and regular HTTP for an API";
-    homepage = "http://couchdb.apache.org";
+    homepage = "https://couchdb.apache.org";
     license = licenses.asl20;
     platforms = platforms.all;
     maintainers = with maintainers; [ lostnet ];
diff --git a/pkgs/servers/mail/dovecot/plugins/pigeonhole/default.nix b/pkgs/servers/mail/dovecot/plugins/pigeonhole/default.nix
index e209487a502c..2b75a36c6c42 100644
--- a/pkgs/servers/mail/dovecot/plugins/pigeonhole/default.nix
+++ b/pkgs/servers/mail/dovecot/plugins/pigeonhole/default.nix
@@ -30,7 +30,7 @@ in stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with lib; {
-    homepage = "http://pigeonhole.dovecot.org/";
+    homepage = "https://pigeonhole.dovecot.org/";
     description = "A sieve plugin for the Dovecot IMAP server";
     license = licenses.lgpl21Only;
     maintainers = with maintainers; [ globin ajs124 ];
diff --git a/pkgs/shells/fish/default.nix b/pkgs/shells/fish/default.nix
index ad63de3b81d4..cf264f11de8c 100644
--- a/pkgs/shells/fish/default.nix
+++ b/pkgs/shells/fish/default.nix
@@ -270,7 +270,7 @@ let
 
     meta = with lib; {
       description = "Smart and user-friendly command line shell";
-      homepage = "http://fishshell.com/";
+      homepage = "https://fishshell.com/";
       license = licenses.gpl2;
       platforms = platforms.unix;
       maintainers = with maintainers; [ cole-h ];
diff --git a/pkgs/shells/zsh/antigen/default.nix b/pkgs/shells/zsh/antigen/default.nix
index 935939f90e60..9a69f90dca34 100644
--- a/pkgs/shells/zsh/antigen/default.nix
+++ b/pkgs/shells/zsh/antigen/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "The plugin manager for zsh";
-    homepage = "http://antigen.sharats.me";
+    homepage = "https://antigen.sharats.me/";
     license = lib.licenses.mit;
   };
 }
diff --git a/pkgs/tools/graphics/blockhash/default.nix b/pkgs/tools/graphics/blockhash/default.nix
index ed2c422e7525..61b0c25631d5 100644
--- a/pkgs/tools/graphics/blockhash/default.nix
+++ b/pkgs/tools/graphics/blockhash/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   strictDeps = true;
 
   meta = with lib; {
-    homepage = "http://blockhash.io/";
+    homepage = "https://blockhash.io/";
     description = ''
       This is a perceptual image hash calculation tool based on algorithm
       descibed in Block Mean Value Based Image Perceptual Hashing by Bian Yang,
diff --git a/pkgs/tools/graphics/fgallery/default.nix b/pkgs/tools/graphics/fgallery/default.nix
index 484a11e322a2..66f8d8d84100 100644
--- a/pkgs/tools/graphics/fgallery/default.nix
+++ b/pkgs/tools/graphics/fgallery/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "Static photo gallery generator";
-    homepage = "http://www.thregr.org/~wavexx/software/fgallery/";
+    homepage = "https://www.thregr.org/~wavexx/software/fgallery/";
     license = licenses.gpl2;
     platforms = platforms.all;
     maintainers = [ maintainers.bjornfor ];
diff --git a/pkgs/tools/networking/eggdrop/default.nix b/pkgs/tools/networking/eggdrop/default.nix
index 79ae5a9713be..a294267bef60 100644
--- a/pkgs/tools/networking/eggdrop/default.nix
+++ b/pkgs/tools/networking/eggdrop/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     license = licenses.gpl2;
     platforms = platforms.unix;
-    homepage = "http://www.eggheads.org";
+    homepage = "https://www.eggheads.org";
     description = "An Internet Relay Chat (IRC) bot";
   };
 }